How to measure what cannot be seen: the dark matter that surrounds galaxies

如何测量看不见的东西：星系周围的暗物质

• 批准号: FT150100269
• 负责人: A/Prof Edward Taylor
• 金额: $ 46.99万
• 依托单位: Swinburne University of Technology
• 依托单位国家: 澳大利亚
• 项目类别: ARC Future Fellowships
• 财政年份: 2016
• 资助国家: 澳大利亚
• 起止时间: 2016-01-25 至 2021-10-01
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/FT150100269
• 关键词: How; measure; what; cannot; seen

This project aims to use a new approach to measuring dark matter, based on the way that it curves spacetime around it. These new techniques, combined with data from the latest generation of Australian astronomical facilities, are designed to enable the project to make the first direct measurements of the dark matter that surrounds galaxies. The stellar-to-halo mass relation encodes basic information about the processes that govern galaxy formation and evolution, and represents a crucial test for cosmological models of structure formation. The project aims to measure the effect of gravitational lensing, which enable the measurement of the total masses of the dark matter halos around individual galaxies, and thus measurement of the stellar-to-halo mass relation.

该项目旨在采用一种新的方法来测量暗物质，其基础是暗物质弯曲周围时空的方式，这些新技术与来自澳大利亚最新一代天文设施的数据相结合，旨在使该项目能够首次直接测量星系周围的暗物质。恒星与晕的质量关系编码了有关星系形成和演化过程的基本信息，代表了对结构形成的宇宙学模型的关键检验。该项目旨在测量引力透镜效应，从而能够测量单个星系周围暗物质晕的总质量，从而测量恒星与晕的质量关系。